Mark G. Sayeg, DDS, FAGD

Meet Dr. Sayeg

Dr. Mark Sayeg is a dedicated dentist providing outstanding, comprehensive dental care to the Northern Atlanta area where he has been practicing for over 35 years. His Sandy Springs, GA private practice, Start Smiling Dental, has a reputation for excellence that is known throughout the community. Dr. Sayeg believes that a confident, healthy smile has the power to transform lives and understands the value of aesthetic and cosmetic dentistry. Dr. Sayeg provides dental care to adults and children and has received numerous awards and recognitions. Consistently rated Best of Atlanta, Best of Sandy Springs, Atlanta Magazine's Top Dentists, and awarded the Patients’ Choice Award by OpenCare. Dr. Sayeg is committed to remaining on the forefront of modern dentistry and is dedicated to utilizing only the most cutting edge technology and tools available.


Skills and Specialties

Dr. Sayeg feels that all of his patients should have a smile they can confidently show to the world, and he is dedicated to helping his patients create and carry out what he considers an individualized smile design. Dr. Sayeg continually trains with the best cosmetic dentists in the world to make sure his patients have the best care available. Check out our Smile Gallery and see for yourself how our patient's lives have been changed by his beautiful work! Dr. Sayeg is also proud to offer a variety of general dental care needs such as dental fillings, dental crowns, root canals, and professional teeth cleanings. 

Education & Training

Since his 1982 graduation from Emory Dental School, in Atlanta, Georgia, Dr. Sayeg has studied on an ongoing basis with top dental professionals in the country to remain current with modern dental care techniques. Dr. Sayeg received a Fellowship from the Academy of General Dentistry, a distinction that puts him in the top 7% of dentists nationwide. Dr. Sayeg has obtained over 2,600 hours of continuing education and places emphasis on the importance of remaining educated in new procedures, and up-to-date with advancing technology.

Achievements & Affiliations

Dr. Sayeg and Start Smiling have been consistently awarded Best of Sandy Springs, Best of Atlanta, and were voted one of Atlanta's Best Dentists by Atlanta Magazine in 2019, and were inducted into the Sandy Springs Hall of Fame in  2019. In addition, Dr. Sayeg is proud to have served as a member or founder of the following influential associations.

  • Georgia Academy of Cosmetic Dentistry (Past President)
  • Georgia Dental Association
  • American Academy of Cosmetic Dentists
  • American Society of Dental Aesthetics
  • American Dental Association
  • Hinman Dental Society
  • Project Start Smiling (Founder)
  • AACD's Give Back a Smile program, providing dental services to survivors of domestic abuse (Past President)


"It’s always a pleasant experience! (for going to the dentist!). Highly recommended."



"This was my 2nd visit to this office and just as my first, the experience was A1. Dr. Sayeg and his staff are on point with their diagnosis and are very thorough with their exams. I'm sure I'll be back in the future."



"First - Start Smiling Dentistry (Drs. Sayeg and Hahn) took over the practice of Dr. Paul Isler, who was my dentist for more than 40 years until he retired several months ago. My first experience with Start Smiling was having a painful rear molar with a long-ago crown extracted- the procedure was well done and healed quickly. This afternoon I visited Start Smiling Dental for a routine 3x/year dental hygiene. My hygienist, who I met for the first time, was Tanya - she did a careful and thorough cleaning of my 87-year-old teeth. So far I couldn't be more pleased with this practice and I highly recommend them"



"I’ve been a patient for over 22 years and wouldn’t change for anything! Dr. Sayeg and Tonya are my favorites!!"



"(Translated by Google) For my experience, arriving at the start smiling dental office was very pleasant, all the staff are very kind and professional because everything was as promised by Dr. Mark G sayeg. at the beginning of my dental process and they have staff who speak Spanish very friendly ms.telmary helped me in all my process thanks to all the staff I recommend them (Original) Por mi esperiencia llegar al consultorio start smiling dental fue muy agradable todo el personal son muy amables y profesionales por que todo fue como me lo prometio el doctor Mark G sayeg. al iniciar mi proseso dental y tienen personal que habla español muy amable ms.telmary me ayudo en todo mi proseso gracias a todo el personal los recomiendo"



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